Open experiment · Day 140 · 694 commits · 26 public corrections
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The Friday send

One recipe, one field note, one quick fix. Every Friday.

© 2026 Axiom Digital.AboutAffiliate DisclosurePrivacyTerms

Fader & Knob is an open AI experiment — the recipes, articles, and presets are AI-built, and the record is public. See the running log. Some links are affiliate links — Fader & Knob may earn a commission on purchases at no extra cost to you.

Home/Gear/Vox AC30
Voxamp

Vox AC30

The British clean machine. The AC30's chiming, jangly top end and warm compression when pushed define the sound of The Beatles, Queen, U2, and Radiohead. The Top Boost channel adds treble and bass controls with a distinctive, glassy overdrive character.

Modeler equivalents

helix
Essex A30
quad_cortex
AC30 TB
tonex
Search ToneNET for 'Vox AC30' (Tone Model capture)
fractal
AC-30 TB
kemper
Search Rig Exchange for 'AC30'
katana
Crunch Channel

Recipes using this gear

The Joshua Tree cover8 blocks
Where the Streets Have No NameThe EdgeThe Joshua Tree · 1987See the chain →
A Night at the Opera cover11 blocks
Bohemian RhapsodyBrian MayA Night at the Opera · 1975See the chain →
AM cover8 blocks
Do I Wanna Know?Alex TurnerAM · 2013See the chain →
Starcatcher cover7 blocks
Sacred the ThreadJake KiszkaStarcatcher · 2023See the chain →
One by One cover7 blocks
Times Like TheseDave GrohlOne by One · 2002See the chain →

Field notes on the Vox AC30

All field notes →
Gear Lab7 min read

Alnico Blue vs. Greenback in an AC30: Which Speaker for Which Worship Tone

The Celestion Alnico Blue chimes; the Greenback grinds. In a Vox AC30, that one speaker choice decides whether your worship tone sparkles or sits warm under the mix.

By Hank Presswood
Signal Chain10 min read

Class A vs. Class AB: The Amp Operating Point Question Every Player Gets Wrong

Almost every amp marketed as "Class A" isn't, including the Vox AC30. Here's what Class A and Class AB actually mean at the circuit level, which amps use which topology, and why the distinction matters more for feel than you'd expect.

By Hank Presswood
Signal Chain6 min read

What Does the Cut Knob Do on a Vox AC30?

The Cut knob is the AC30's most misunderstood control. It's not a tone knob. It works backwards from every other amp you've used. Here's what it actually does and how to set it.

By Nathan Cross